package thread;

public class ThreadDemo1 {
    public static void main(String[] args) {
        Thread t1=new MyThread1();
        Thread t2=new MyThread2();
        t1.start();
        t2.start();
    }
}

class MyThread1 extends Thread {
    public  void run(){
        for(int i = 0 ; i < 1000; i ++){
            System.out.println("你好你好你好");
        }
    }
}

class MyThread2 extends Thread {
    public  void run(){
        for(int i = 0 ; i < 1000; i ++){
            System.out.println("aaaaaaaaaaa");
        }
    }
}
